Horn for talking-machines.



T. H. TOWELL. ORN FOR TALKING MACHINES. APPLICATION 1 ILBI) MAR. 18, 1912.

1 .033 ,215. Patented July 23, 1912.

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THOMAS H re-Wanner ennvnnaun, onto, assie-non TO THE unr'rnn sra'rus rnonoenarrt COMPANY, or cnnvnnann, onto, a oonronarrou or OHIO.

HORN FOR, TALKING-MACHINES Specification of Letters Eat-eat. Patented Fui y Q3,1912.

original appiicathnfiledfuly 29,11910, Serial No. 574,467. Iiiv'ided and this application filed March 18, 1912. Serial no. ceases. v 1

fication, the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions. I

.The present invent-ion, relating as indicated to horns for talking machinesfhas as its object the provision of a horn suitable for use on such machines, whether of the disk or cylinder type, and one that will be readily adjustable to the various require: ments encountered in operating either such type of machine.

The subject matter of the present case has been divided out of applicants co-pending application Serial No. 574,467, filed July 29, 1910, and relates more especially to the amplifier as distinguished from such amplifier in combination with the talking machine mechanism.

To the accomplislnnent of the end just recited said invention. then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawing and the following description set forth in detail certain mechanism embodying the invention, sue disclosed means constituting, however, but one of varionssmechanical forms in which the principle of the invention may be used.

In said annexed drawing:-Figur 1 is a side elevation of one typical form of cylinder talkingmachine, with a horn shown in connection therewith embodying the present improvement: Fig. 2 'is a horizontal sectionaldetail of such horn, taken on the plane 2-2, Fig. 1 Fig. 3 is a vertical section of a detail ofthe jointed elbow connecting the tone arm with the amplifier proper; and Fig. 4 is similarly a vertical section of the inward end of said tone arm, the pitch of the coiled interlocking strip composing such T tone. arm being exaggerated in order to render the construction of the latter clear.

upon which it is mounted, is shown in Fig.

1, and it will behinderstood that the type of the machine is entirely immaterial so far as'the improvements herein claimed are concerned. In other worcls, for "example,

said machine may be or the disk record type instead of the cylinder type illustrated.

The horn is designed to'be supported upon a bracket 1 extending rearwardly and upwardly from'such cabinet,-and' comprises in effect three portions, a tubular elbow 2 pivotally mounted upon the bracket in question about a vertical axis, anamplifying born 3, and an extension 4 that forms the sound-conveying connection between: the small end of said amplifier sound-box 5 ofthe talking machine. The openings ofsitch-tubular elbow aresubstan- 't-ially'right-angularly related, and it is with the upwardly directed one that'the amplify- 'ing horn is" connected, being pivotally secured-to the elbow by a sectional flange 6,

as clearly shown in Fig.3. One section of such flange is detachably secured in place by a set-screw '18, whereby the horn may be entirely removed from the elbow. Said horn is furthermore constructed in one or more sections which may be separated, as at the joint 7,-if desired, to facilitate packing in case of shipment or storage, the horn being more or less in the way when not in use. Pivotal movement of horn 3 upon the bracket is limited in either direction by a stop 16 carried by the other section of such flange and coiiperating with a segmental notch or recess 17 in the edge of the horn, as will be readily understood. The elbow 2 is thus pivotally mounted about an upwardly directed pin or stud 8 on the bracket 1, and is designed to be normally fixedly secured, or in other words, held against rotation, by means of a set screw 9, that c0- operates with such pin. It not designed that such elbow shall ha c any movement about this pin in the norma use of the horn, such pivoting being merely provided in order to enable the horn to 'be swung to one side, in case itbecomes desirable toentirely disconnect the same from the.s0undbox.

The sound conveyer 4- extending from the small end of the horn 3 or rather from the Only the outline of the talking machine.

.. proper, together with the case or cabinet horizontally directed opening or the elbow 2, to the sound-box comprises a section of flexible metallic tubing, a preferred, conand the structional form of such tubing being that shown in the sectional view of Fig. i, from which it will be seen to consist of coiled interlocking strips 10 of metal, with an interposed packing strip 11. Such soundconveyer is furthermore made tapering to conform with the taper of the amplifying horn and elbow-so that, in other words, there is a continuousand general increase in the diameter of the bore of the passage formed by such extension, elbow and the amplifier proper.

The larger end of the conveyer is received in an annular socket or recess 12 formed in the casting constituting the elbow, while a ferrule or sleeve 13 is similarly fitted over the smaller end of such conveyer, one end of the short recurved tube, or elbow 14, that connects the sound conveyer with the sound-box being designed to slidably fit within such sleeve, just as the other end of such tube 14, fits slidably over. the upwardly extending tubular portion of the sound-box 5. i

The flexible character of the s0und-conveyer permits the sound-box to travel across the record upon the record support 15 with perfect freedom, while still preserving a diminished volume. The horn proper may obviously be swung so as to extend in any.

desired direction Without interfering in the slightest with the flexing of the sound conveyer although the stop 16 prevents any turning of the horn to an extent that might overbalance the machine. WVhen it is desired to remove the horn this is readily accomplished by releasing the set-screw 18 that holds the detachable section of the retaining flange in place. Should it, furthermore,

Copies of this patent may be obtained for vided the means stated by any of the following claims or the equivalent of such stated means be} employed.

I therefore particularly point out and dis tinctly claim as mv invention-:'--

l. A horn for talking machines, comprising a generally tapering amplifying horn proper, and a flexible tubular extension to the smaller end of said'horn consisting of coiled interlocking strips, such extension being tapered to conform with the taper of said amplifying horn.

2. A horn for talking machines, comprising a generally tapering amplifyinghorn proper, and a flexible tubular extension to thesmaller end of said horn consisting of coiled interlocking strips of metal, such extension being taperedto conform with the taper of said amplifying horn.

8. A horn for talking machines, comprising a curved amplifying horn proper of generally tapering form pivotally supported at its smaller end, and a flexible tubular extension to such smaller end consisting of coiled lnterlocking strips of metal, such extension being tapered to conform with. the taper of said amplifying horn.

Signed by me this 14th day of March,

TI'IOBKIAS H. TOWELL. Attested by ANNA L. GILL,

JNo. F. Onniuim.

five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

